Least Concern· population trend unknown· assessed 2015

Mediterranean moray

Muraena helena

Sighting evidence at Cala Morell Cave, Menorca

Photo: Jean-Paul Cassez · CC BY-NC

One of the largest eels in the Mediterranean, the Mediterranean moray can exceed 1.5 metres and is an apex predator of crevice habitats. It hunts octopus and fish at night by scent rather than sight. The cave at Cala Morell provides ideal shelter, and resident individuals are often observed with their heads protruding from the same crack dive after dive.

Evidence at this site

2 records within 25 km

Confidence: low

Last confirmed Sep 2025

Seasonality

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How is this calculated?

Sighting evidence is compiled from iNaturalist observation records within a set proximity radius, filtered for quality-grade observations. “Last confirmed” is the date of the most recent research-grade record. Record count covers a rolling 24-month window. Confidence reflects record count, recency, and consistency of seasonal signal.

Mediterranean moray

Evidence at this site

Seasonality

Also seen at other sites